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Side by side

Redken Acidic Color Gloss Sulfate-Free Shampoo vs Redken Color Extend Magnetics Shampoo

69% function match · 7 of the 13 functions we compared match Formula overlap 19%. Redken Acidic Color Gloss Sulfate-Free Shampoo and Redken Color Extend Magnetics Shampoo share 4 ingredients among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • Acidic Color Gloss Sulfate-Free Shampoo — colour-treated hair
  • Color Extend Magnetics Shampoo — colour-treated hair

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Redken Acidic Color Gloss Sulfate-Free Shampoo — 10.1 oz container Redken

Acidic Color Gloss Sulfate-Free Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Protein-free
Redken Color Extend Magnetics Shampoo — 10.1 oz container Redken

Color Extend Magnetics Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Lightweight
Price, size & price per ounce
$32.95 10.1 oz · $3.29/oz
$27–30 10.1 oz · $2.77/oz
Value / price positioning
Same job for less elsewhere $$$$$ Salon tier · costs more than 78% of the 817 shampoos we’ve priced
Upper-mid price for a shampoo $$$$$ Salon tier · costs more than 72% of the 817 shampoos we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Differs
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Low Humectants appear, but low enough to be a minor part. Your hair
Cleansing strength Same
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Slip / detangling Same
Moderate Conditioning agents are present, lower in the list. Your hair
Moderate Conditioning agents are present, lower in the list. Your hair
Weight on hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Differs
None No protein or amino acids in the list. Your hair
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Silicone / wax buildup Same
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Expected lather Differs
High Thick foam that spreads quickly through the hair. Your hair
Moderate An ordinary shampoo lather. Your hair
Scalp active Same
None No over-the-counter scalp active. Your hair
None No over-the-counter scalp active. Your hair
Hard-water defence Differs
None No chelating agent in the list. Your hair
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Colour-treated hairthat fades faster in a sulfate wash
  • Protein-sensitive hairthat stiffens when protein is added
  • Fast-oiling scalpsthat need a real reset wash
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Hard waterand swimmers dealing with mineral deposit
  • Fine hairthat flattens under most products
Why you might skip it
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Dry or damaged haira strong detergent system strips as it cleans
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Dry or damaged haira strong detergent system strips as it cleans
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Shampoo
Shampoo
Line
Acidic Color Gloss
Color Extend Magnetics
Where to buy
Target · Ulta
Target · Ulta
Free of
  • sulfate-free
  • protein-free
  • sulfate-free
Cruelty-free
Not cruelty-free · PETA-listed
Not cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

$49.00 once, for your consultation and hair profile. No subscription, no required purchases.

The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientAcidic Color Gloss Sulfate-Free ShampooColor Extend Magnetics Shampoo
Water
Neutral
#1Leading
#1Leading
Glycerin
Moisturizes
#3Leading
#47Below the 1% line
Glycol Distearate
Softens
#5Supporting
#7Supporting
Sodium Lauroyl Sarcosinate
Cleanses
#7Supporting
#6Supporting
Propylene Glycol
Moisturizes
#8Supporting
#16Below the 1% line
Fragrance
Fragrance
#11Below the 1% line
#11Below the 1% line
Amodimethicone
Buildup
#22Below the 1% line
#12Below the 1% line
Coco-Betaine
Cleanses
#17Below the 1% line
#2Leading
Sodium Chloride
Stabilizes
#14Below the 1% line
#8Supporting
Benzyl Salicylate
Fragrance
#28Below the 1% line
#25Below the 1% line

What only one of them carries

Acidic Color Gloss Sulfate-Free Shampoo

Color Extend Magnetics Shampoo

Full ingredient list — Acidic Color Gloss Sulfate-Free Shampoo (37)
Full ingredient list — Color Extend Magnetics Shampoo (52)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsAcidic Color Gloss Sulfate-Free ShampooColor Extend Magnetics Shampoo
Supported
1
1
Partly supported
0
2
Stated by brand
4
0
Potential conflict
0
0

Acidic Color Gloss Sulfate-Free Shampoo

  • pH-balanced shampoo specially formulated for color-treated hairSupportedLess fade per wash.
  • Infused with a specially-made RCT protein complex for ultra-soft and silky resultsStated by brandSubjective feel varies by hair.
  • Helps prolong the life of your salon-grade haircolorStated by brandA channel, not a formula.
  • Soy protein creates structure from root to tipStated by brandCan’t be confirmed from label.
  • Safe for all hair typesStated by brandSee the fit panel instead.

Color Extend Magnetics Shampoo

  • Sulfate-free formula gently restores nutrition to hair tipsSupportedGentler on colour and coils.
  • Protein complex thoroughly cleanses and fortifies the root, core, and tipPartly supportedSupports the surface, not a treatment.
  • Nourishes and strengthens hair without stripping hair colorPartly supportedSome hydration, at a low level.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Redken Acidic Color Gloss Sulfate-Free Shampoo draws complaints about the scent.

Acidic Color Gloss Sulfate-Free Shampoo

Reviewers with easily-tangling hair report the shampoo helps detangling

tangle-prone hair

Reviewers with red/vivid color report it does a lovely job maintaining their color

color-treated, red/vivid tones

Some bleached/color-processed users report exclusive loyalty to the full Redken color-care system (shampoo/conditioner/mask)

bleached/heavily color-treated hair

Users report the shampoo works well and smells good, general satisfaction

general users

A rare but serious complaint of significant hair loss/shedding after first use, though scent was liked

general users

Color Extend Magnetics Shampoo

Long-time Redken users describe the shampoo and its paired conditioner as improving softness and manageability for color-treated hair

long-time Redken users

Praised for maintaining and protecting hair color vibrancy on color-treated hair

general color-treated hair users

Reviewers who buy the shampoo often purchase the matching Color Extend Magnetics conditioner as a set, reporting both work well together

repeat/paired-purchase reviewers

Reviewers with gray or highlighted hair note the shampoo accentuates their silver/highlight tones

gray/highlighted-hair reviewers

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$2.77/oz vs $3.29/oz — Redken Acidic Color Gloss Sulfate-Free Shampoo costs about 1.2× more per ounce than Redken Color Extend Magnetics Shampoo.

$0.00/oz median $1.47/oz $17.29/oz $3.29/oz Acidic Color Gloss Sulfate $2.77/oz Color Extend Magnetics Sha

Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.

Value readAcidic Color Gloss Sulfate-Free ShampooColor Extend Magnetics Shampoo
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Upper-mid price for a shampooSits in the middle of the range for shampoos per ounce.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

Acidic Color Gloss Sulfate-Free Shampoo vs Bonding ShampooVerb · 94% function matchColor Extend Magnetics Shampoo vs Miracle Daily Shampoo Plus KeratinIt's a 10 · 100% function matchAcidic Color Gloss Sulfate-Free Shampoo vs High Gloss ShampooKristin Ess · 93% function matchColor Extend Magnetics Shampoo vs GEMSTONE Color ShampooR+Co · 96% function matchAcidic Color Gloss Sulfate-Free Shampoo vs Curls ShampooSun Bum · 91% function matchColor Extend Magnetics Shampoo vs SUPER GARDEN ShampooR+Co · 96% function matchAcidic Color Gloss Sulfate-Free Shampoo vs Argan Oil Hydrating ShampooMarc Anthony · 91% function matchColor Extend Magnetics Shampoo vs DALLAS Biotin Thickening ShampooR+Co · 96% function match

Acidic Color Gloss Sulfate-Free Shampoo · Color Extend Magnetics Shampoo · All shampoos in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
  • The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
  • 8 sources were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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